Q: Is 21,042,243 a Composite Number?

 A: Yes, 21,042,243 is a composite number.

Why is 21,042,243 a composite number?

A composite number is a number that can be divided evenly by more numbers than 1 and itself. It is the opposite of a prime number.

The number 21,042,243 can be evenly divided by 1 3 9 17 51 83 153 249 747 1,411 1,657 4,233 4,971 12,699 14,913 28,169 84,507 137,531 253,521 412,593 1,237,779 2,338,027 7,014,081 and 21,042,243, with no remainder.

Since 21,042,243 cannot be divided by just 1 and 21,042,243, it is a composite number.


More Examples

Number 21,042,24121,042,24221,042,24421,042,245
Composite? yesyesyesyes
  • All positive natural numbers are either a prime number or a composite number (except the number 1, which is neither).

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